GB1039994A - Electro-deposition of an iron-nickel-arsenic magnetic alloy of low hk - Google Patents

Electro-deposition of an iron-nickel-arsenic magnetic alloy of low hk

Info

Publication number
GB1039994A
GB1039994A GB41227/63A GB4122763A GB1039994A GB 1039994 A GB1039994 A GB 1039994A GB 41227/63 A GB41227/63 A GB 41227/63A GB 4122763 A GB4122763 A GB 4122763A GB 1039994 A GB1039994 A GB 1039994A
Authority
GB
United Kingdom
Prior art keywords
deposition
aso2
effected
bath
iron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB41227/63A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sperry Corp
Original Assignee
Sperry Rand Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1039994A publication Critical patent/GB1039994A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • H01F10/14—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing iron or nickel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/24—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids
    • H01F41/26—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids using electric currents, e.g. electroplating

Abstract

Magnetic films of Ni-Fe-As are deposited electrolytically from an aqueous acid plating bath containing Ni++, Fe++ and AsO2- as the onl platable ions and 0.016 to 0.027 moles/litre Fe++, the ratio ranges on a normality basis being 0.020 to 0.032 for Fe++/Ni++ and 0.0009 to 0.004 for AsO2-/Ni++. Plating is effected from a bath of p 2 to 3 at a temperature of 22 to 30 DEG C. with a cathode current density of 2 to 10 mA/cm2 for a period of 50 to 150 secs. The bath comprises nickel and iron sulphates, sodium meta-arsenite, boric acid, NaCl, saccharin and sodium lauryl sulphate, and deposition is effected on to cleaned and polished conductive bases as of metal or of glass or plastic rendered conductive by vapour deposition coatings of gold or chromium followed by gold over the whole base or selected areas. A magnetic field may be applied during electroplating. The ternary alloy forming the magnetic film consists on a weight percentage basis of 75 to 85% Ni, 12 to 25% Fe and 1 to 10% As, preferably 80 to 82% Ni, 15 to 17% Fe and 1.2 to 4.8% As.
GB41227/63A 1962-10-31 1963-10-18 Electro-deposition of an iron-nickel-arsenic magnetic alloy of low hk Expired GB1039994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US234519A US3271275A (en) 1962-10-31 1962-10-31 Electrodeposition of a magnetic ternary alloy of iron-nickel-arsenic

Publications (1)

Publication Number Publication Date
GB1039994A true GB1039994A (en) 1966-08-24

Family

ID=22881695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41227/63A Expired GB1039994A (en) 1962-10-31 1963-10-18 Electro-deposition of an iron-nickel-arsenic magnetic alloy of low hk

Country Status (5)

Country Link
US (1) US3271275A (en)
BE (1) BE638864A (en)
DE (1) DE1243939B (en)
GB (1) GB1039994A (en)
NL (1) NL299926A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477051A (en) * 1967-12-26 1969-11-04 Ibm Die casting of core windings

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB420248A (en) * 1932-09-03 1934-11-28 Falconbridge Nikkelverk Improvements in or relating to the production of nickel by electrolytic deposition from nickel salt solutions
US3065105A (en) * 1958-06-12 1962-11-20 Sperry Rand Corp Process and apparatus for producing magnetic material and resulting article
US3047475A (en) * 1958-09-25 1962-07-31 Burroughs Corp Method for producing magnetic materials
US3098803A (en) * 1960-06-23 1963-07-23 Ibm Thin magnetic film

Also Published As

Publication number Publication date
BE638864A (en)
NL299926A (en)
US3271275A (en) 1966-09-06
DE1243939B (en) 1967-07-06

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